Cutter for wall-paper.



W. CLARK. CUTTER FOR WALL PAPER. APPLICATION FILED Unze, 1911.

1,053,359. Patented Feb.18,1913.

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WITNESSES; INVENTOR:

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caLUMBlA PLANouRAPH co., wA5H|NGToN. D. c.

W. CLARK. GUTTER FOR WALL PAPER, APPLICATION FILED APB. 26, 1911. f1,053,359 Patented Feb. 18, 1913.

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wrLLrAM CLARK, or DUNEEEMLINE, SCOTLAND.

CUTTER FOR WALL-PAPER.

Specification of Letters Patent.

Patented Feb.' 18, 1913.

Application filed Ap1i1v26, 1911. Serial No. 623,522.

To all whom t may concern Be it known that I, WILLIAM CLARK, a subjectof the King of Great Britain and Ireland, residing at 68 New Row,Dunfermline, in the county of Fife, Scotland, have invented new anduseful Improvements `in Cutters for Wall-Paper, of which the followingis a specification.

This invention relates to cutters for wall paper, t-he objects being toprovide means for retaining the straight edge in position whenset and toimprove the construction of the cutting instrument. In order that mysaid invention andthe manner of putting the same into practice may beproperly understood, I have hereunto appended an explanatory drawing inwhich the same reference numerals are used to indicate correspondingparts in the figures shown, and in which Figure 1 isa side elevation ofthe device embodying my improvement; Fig. 2 is an end elevation; Fig. 3is a detail -plan view of a fastening piece; and Fig. 4 is a detailView, partly in section, of the circular cutter.

The straight edge 1 consists of a long piece of wood with a strip ofbrass 2 on the back edge, slightly projecting on the underside. By sucha construction the straight edge lies more rmly on the table. The frontedge and top has a brass facing 3 of L section. In the top of thestraight edge is a groove 4 extending its whole length. The L facing andthe groove form a guide for the cutting instrument 5 to slide on. Thestraight. edge is fastened to the table 6 by means of two hinged pieces7, each provided with a pin 8 for going into the table. One hinged pieceat one end of the straight edge is designed to fold out longitudinallyand the other at the other end laterally as shown, the lirst mentionedengaging with either the top or the edge of the table and the secondwith the top. Each hinged piece folds in on the underside of thestraight edge, the pin and the leaf when thus folded being within suchstraight edge and entirely out of the way. There may also be used one ormore spring pressers 9 to keep the straight edge in position. Eachspring presser is fixed on the side of the table 6 'and consists of abracket curving up and over to clear the cutting instrument 5 in such amanner that the presser will bear on the upper surface of the straightedge, such presser consisting of a screwed rod 10 with pad 11, spring 12and adjusting nut 13. The rod 10 is pressed down by the spring and tokeep it from acting the rod is pulled up against the pressure of thespring and partly turned until the pin 14 rests on the top of the guide15.

The cutting instrument consists of a slide 5 which can movey on itsguide 4 on the straight edge. To this slide is hinged at 16 a bracket 17carrying an arbor 18 on which a circular cutting disk 19 is mounted torotate. The bracket 17 and with it the circular cutter is depressed bymeans of a spiral spring 20 which envelops a stud 21 having a screwthread thereon, said stud being pvoted at 22 to the slide, the pressureor downward thrust or maximum depth of cut"of the cutter 19 being due tothe action of the spring and the depth of the cut of said cutter beingadjusted by a nut 23 bearing on the telescopic spring case 26, 27.

24 are pin holes in the cutter and in the bracket 17, their purposebeing to receive a pin 25 when it is desired to use the cutting disk asa non-rotatory knife. When one portion of the edge thus used becomesblunt another part of the edge can be set for cutting by causing the pinto engage with another of the holes 24.

The appliances are used in the following manner z--The paper to betrimmed is laid on the table 6 which may have its surface faced with azinc plate. The straight edge 1 is laid on the paper and adjusted tosuit, after which it is retained in position by causing the pins 8 inthe hinged pieces to engage with the table, or by allowng the springpresser to act by bringing the pin 14 over and into its recess. Thecutting instrument 5 is then slid along the straight edge and in sodoing the circular cutter cuts the paper at the desired place.

What I claim as my invention and desire to secure by Letters Patent isIn a circular cutter for wall paper, in combination, a slide, a brackethinged thereto and carrying a circular cutter, a screw threaded studpivoted to the slide, a spring j' tension adjusting nut, and acompressive In testimony whereof I have signed my spiral spring to givepressure to the cutter,

name to this specification in the presence of said s ring glving anelastic expansive prestWo subscribing Witnesses.

sure etween the slide and the hinged WILLIAM CLARK. 5 bracket carryingthe cutter and a nut for Witnesses:

adjusting the depth of the cut-ting edge of JOHN P. ANnREWs, saidcutter. CHAs. DRYSDALE.

Copies of this patent may be obtained for ve cents each, by addressingthe Commissioner of Patents, Washington, D. G.

